Feature(may vary by option.)
●HOT WATER SUPPLY: Our vacuum relief valve is designed specifically to protect the hot water supply system where over-pressure conditions are likely to occur as a result of thermal expansion
●DOMESTIC AND COMMERCIAL APPLICATIONS: Can be used for both domestic household and commercial job site applications
●COMPLETELY AUTOMATIC: The VR20 Vacuum Relief Valve reseals after pressure relief
●INSTALLATION: The valve may be installed directly on the tank or in a tee and is appropriate for either side (hot or cold) of the water heater
●PRODUCT SPECIFACTIONS: Fitted with a bronze body and has a stainless steel internal part, silicone seat disc and stainless steel pressure spring
[3 & 4 in. Gold]
Description
The VR20 Vacuum Relief Valve is designed to protect hot water supply systems and pressure vessels against negative pressure. It is especially well suited for many domestic and commercial systems. It works by preventing internal vacuum conditions that could result in burned out heaters and/or collapsed storage tanks. Installed on the cold water supply line, the Cash Acme VR20 closes tightly under pressure and opens at a 1″ mercury vacuum. Atmosphere admitted to the system breaks the vacuum, preventing collapse of the storage tank. APPLICATION: For protection of commercial hot water supply systems and pressure vessels against negative pressure. APPROVALS AND LISTINGS: ANSI Z21.22/CSA 4.4. Listed by CSA